Table of Contents
What are the torque specs for a 454 Chevy?
Big Block Chevy Torque Specs
| Fastener Type | Torque Specs |
|---|---|
| Main Cap Bolt (396-454, 4-Bolt, Inner and Outer) | 110 ft.-lbs. |
| 3/8 in. Connecting Rod Bolt | 50 ft.-lbs. |
| 7/16 in. Connecting Rod Bolt | 67-73 ft.-lbs. |
| Cylinder Head Bolts, Long | 75 ft.-lbs. |
What year is a Gen V 454?
1991
Here’s a pristine Gen V 454 from a 1990 Chevrolet 454SS pickup. Gen V, introduced in 1991, included a superior one-piece main rear seal, new oiling passages closer to the cam, and all blocks received four-bolt mains.
What is the horsepower of a 454 engine?
Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasn’t a big surprise. But like any stock engine, there was tons of power left to be squeezed out.
What size is a 7.4 liter engine?
The 7.4L (454 cubic-inch) V8 was a big-block engine manufactured by the Chevrolet Division of General Motors starting in 1970. It was the second-largest Chevy production engine after the 8.2L, or 502 cubic-inch motor.
How much torque does a big block Chevy have?
Big Block Chevy Torque Specs Fastener Type Torque Specs 7/16 in. Connecting Rod Bolt 67-73 ft.-lbs. Cylinder Head Bolts, Long 75 ft.-lbs. Cylinder Head Bolts, Short 65-68 ft.-lbs. Screw-In Rocker Arm Studs 50 ft.-lbs.
How many horsepower does a Chevy 454 V8 have?
Chevy V8 LSX Engine Storage Stand. The 1970 production models of the 454 put out the most horsepower with the LS5 claiming 360 horsepower and the LS6 putting out a mighty 450 horsepower.
Are there any variations of the Chevy 454?
There were 3 different variations of the 454 that came onto the drawing board at GM during the 70s; the LS5, the LS6, and the LS7 which was designed but not produced for the general public most likely due to the massive smog restrictions that started lurking about in the early 70s..